I am currently trying to recreate or adapt a cartoon eye rig in houdini with help of a blender tutorial. Its basically 4 different spheres all controlled by a lattice. Only exception is the actual eye geo where only the sclera part is deformed by the lattice (with a point group)!
[ibb.co]Now I am at a point in the tutorial where the Iris and Pupil parts are supposed to be pushed out closer to the surface of the cornea as soon as the eye rotates.
[ibb.co]In the blender tutorial this is done with a hook modifier. If I understand correctly its more or less the equivalent of a soft transform on a point group in houdini. I tried different kind of approaches with constraints, expressions and VOPSOPs but I just can't seem to get it to work properly.
If anyone has any ideas on how to do this I would be very thankful!
